Finding the Third Proportional to 151.31 and 320.06

Step by Step Solution

1. Step 1: Write the proportion equation
   151.31 : 320.06 = 320.06 : x
2. Step 2: Convert to fraction form
   151.31/320.06 = 320.06/x
3. Step 3: Cross multiply
   151.31x = 320.06 × 320.06
4. Step 4: Simplify right side
   151.31x = 102,440.00
5. Step 5: Solve for x
   x = 102,440.00/151.31
6. Step 6: Final answer
   x = 677.01